 (deftest bulk-functions
   (checking
    "Bulk functions call the function, but always return their inputs"
-   (times 20)
+   (times 5)
    [input (gen/not-empty (gen/vector (gen-segment)))
     output gen/any]
    (let [called? (atom false)

(deftest multi-segment-return
  (checking
   "Multiple segments can be returned, attached to their root"
   (times 20)
   [input (gen-segment)
    output (gen/vector (gen/map gen/any gen/any))]
   (let [f (fn [segment] output)

(deftest singe-segment-return
  (checking
   "A single returned segment attaches to its root"
   (times 5)
   [input (gen-segment)
    output (gen/map gen/any gen/any)]
   (let [f (fn [segment] output)
